[jcynix]

Readers who payed (and only those) could vote on a scale whether the article was worth the payment? The amount payed might even be calculated into the vote, e.g. you payed one token and get one vote, I payed two or three tokens and get two votes.

[reactordev]

And for those long investigation stories, you can sell the series cheaper up front and give access to all the stories related to that case. Or nickel and dime each post.